Digital Globe can bring near realtime imagery on a daily basis to a great deal of the earth. They use large satellites to bring a high degree of accuracy. Keven compares them to sniper rifles in that they are long.

But the analogy is also apt when you think about how dangerous a sniper can be – how psychologically unnerving it is to know that someone out of sight can put their sights on you.
Their CE90 has an accuracy of 0.0035 km. That’s an accuracy of 3.5 m.